Arlington, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Arlington, a city in Snohomish County, Washington.
Overnight
50°F
Mostly Cloudy
Mostly cloudy, with a low around 50. North wind around 1 mph.
7-day forecast for Arlington
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 50°F | Mostly Cloudy | 1 mph N | 0% |
| Saturday | 73°F | Partly Sunny | 1 to 5 mph WNW | 0% |
| Saturday Night | 49°F | Mostly Clear | 1 to 5 mph NW | 0% |
| Sunday | 73°F | Partly Sunny | 1 to 6 mph NW | 0% |
| Sunday Night | 48°F | Partly Cloudy | 0 to 6 mph NW | 0% |
| Monday | 71°F | Mostly Sunny | 0 to 6 mph NW | 0% |
| Monday Night | 49°F | Partly Cloudy | 0 to 6 mph NNW | 1% |
| Tuesday | 69°F | Partly Sunny | 0 to 5 mph NW | 1% |
| Tuesday Night | 47°F | Mostly Cloudy | 1 to 5 mph NNE | 12% |
| Wednesday | 68°F | Partly Sunny then Slight Chance Light Rain | 3 mph SSW | 17% |
| Wednesday Night | 48°F | Slight Chance Light Rain then Mostly Cloudy | 3 mph NNW | 17% |
| Thursday | 66°F | Mostly Cloudy then Slight Chance Light Rain | 1 to 6 mph NNW | 17% |
| Thursday Night | 47°F | Slight Chance Light Rain | 1 to 6 mph NNW | 22% |
| Friday | 66°F | Slight Chance Light Rain then Partly Sunny | 1 to 5 mph NNW | 22% |
Forecast source: National Weather Service (api.weather.gov) for Arlington (48.170, -122.145). Updated through the day.
Growing snapshot for Arlington
Last spring frost
Mar 24
First fall frost
Nov 2
Growing season
223 days
Hardiness zone
8b
More local growing data for Arlington: nearby ZIP 98270 weather · frost dates · planting calendar · Washington frost dates
Nearby towns & communities
Alderwood Manor
Arlington Heights
Bothell East
Bothell West
Brier
Bunk Foss
Canyon Creek
Cathcart
Cavalero
Chain Lake
Clearview
Darrington
Eastmont
Edmonds
Esperance
Everett
Fobes Hill
Gold Bar
Granite Falls
Hat Island
Kayak Point
Lake Bosworth
Lake Cassidy
Lake Cavanaugh
Lake Goodwin
Lake Roesiger
Lake Stevens
Lake Stickney
Larch Way
Lochsloy
Climate data from the nearest NOAA station, Everett, Wa (6 mi from Arlington). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.